<html>
  <body>
    <style>
      .example-appear {
        opacity: 0.01;
      }

      .example-appear.example-appear-active {
        opacity: 1;
        transition: opacity .5s ease-in;
      }
    </style>
    <div id="container"></div>
    <script src="output.js"></script>
    <script>require('initialize');</script>
  </body>
</html>